Amplifier

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sean2e0saf
Posts: 77
Joined: Thu Nov 21, 2013 5:29 pm

Amplifier

Post by sean2e0saf » Sat Aug 26, 2017 5:22 am

Looking for a driver amp for my dtx1

1 to 2mw drive

The dtx1 is -5dbm around 0.35mw

Cash here or trade a analogue transmitter
23cms AATV from io83qn ( wn68ns )
23cms DATV from i083qn ( wn68ns )
70cms DATV from io83qn ( wn68ns )

wimo shf-2344
parabeam 70cms/18ele

g0mjw
Posts: 888
Joined: Sat Sep 20, 2014 9:15 am

Re: Amplifier

Post by g0mjw » Sat Aug 26, 2017 6:47 am

Any particular frequency?

G4HTZ
Posts: 178
Joined: Sat Aug 02, 2014 4:21 pm

Re: Amplifier

Post by G4HTZ » Sat Aug 26, 2017 7:32 am

I might be selling my Dg0ve 60w 70cms amp .....if it's 70cms your after ..also got the 70cms filter
Steve G4HTZ
Great Wakering Essex JO01JN

sean2e0saf
Posts: 77
Joined: Thu Nov 21, 2013 5:29 pm

Re: Amplifier

Post by sean2e0saf » Sat Aug 26, 2017 2:11 pm

Yes sorry guys 23cms i need...

But has to be around 1 to 2 mw drive or less
23cms AATV from io83qn ( wn68ns )
23cms DATV from i083qn ( wn68ns )
70cms DATV from io83qn ( wn68ns )

wimo shf-2344
parabeam 70cms/18ele

g0mjw
Posts: 888
Joined: Sat Sep 20, 2014 9:15 am

Re: Amplifier

Post by g0mjw » Sat Aug 26, 2017 3:31 pm

The standard 23cms amplifier from minikits should do what you want. The 18W 23 cms module will give you 3W output for DATV

http://www.minikits.com.au/electronic-k ... -Amplifier

It needs about 40mW for full output so you will need a driver amplifier. Somthing like the Gali 84 or 74.

http://www.minikits.com.au/electronic-k ... -Amplifier

That's too much gain for one box so keep them separate. Also you probably need some attenuation.

If all of that is too much for you - Bert Modderman does a built version and has options for lower power drive - around 0 dBm.

Image

Mike

sean2e0saf
Posts: 77
Joined: Thu Nov 21, 2013 5:29 pm

Re: Amplifier

Post by sean2e0saf » Sat Aug 26, 2017 4:53 pm

yes the mini kits driver board is probably all i need as i already have a bert amp..! its around 80mw drive for 18watts out fm so i would probably get around 10watts digital with a clean signal..

does anyone here have a driver amp they like to sell..?????

before i order a mini kits one..
23cms AATV from io83qn ( wn68ns )
23cms DATV from i083qn ( wn68ns )
70cms DATV from io83qn ( wn68ns )

wimo shf-2344
parabeam 70cms/18ele

oe7dbh
Posts: 55
Joined: Fri Feb 15, 2013 2:03 am

Re: Amplifier

Post by oe7dbh » Sun Aug 27, 2017 12:30 am


sean2e0saf
Posts: 77
Joined: Thu Nov 21, 2013 5:29 pm

Re: Amplifier

Post by sean2e0saf » Sun Aug 27, 2017 12:38 pm

I dont see anything i can use darko..

I need

0.032 mw -5dbm input and 80mw 29dbm outputs amplifier

Unless the -3db to 210mw maybe ok.. and i use the dtx1 at less rf drive to the amplifier.. i may have to attenuate the output of that

Inc shipping to wn68ns for this amplifier darko
23cms AATV from io83qn ( wn68ns )
23cms DATV from i083qn ( wn68ns )
70cms DATV from io83qn ( wn68ns )

wimo shf-2344
parabeam 70cms/18ele

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